If you want to, but you will need to check some basic system hardware points first. Send me the full spec on an email to compdoctor2005@btinternet.com. To get this information go to start,all programs,accessories,systemtools,system information. You will need to be certain that your machine is at least 32bit enabled with present hardware. The easier way would be to go here and the ms website will do it for you automatically. Them make sure you buy the correct version of vista, i.e. don't buy a 64bit version if your pc is not 64bit hardware.Go here to MS website to download the tool to assess your pc for such an upgrade, then when you are decided go to my ebay at SIAN8401 to check my prices.
http://www.microsoft.com/uk/windows/products/windowsvista/buyorupgrade/upgradeadvisor.mspx
Chris F, April 2008